The Modular Construction System
What you should know about the GL screw joint system
The GL thread is the most common thread on lab equipment made of glass. BOLA offers a modular construction system with many different components with GL threads. All components can be combined and thus allow an easy transition from glass to plastic accessories.
Using BOLA Laboratory Screw Joints you can simply connect tubes or tubing made of glass, metall or plastics directly to GL threaded sockets, no matter whether it is an reactor lid made of glass or a BOLA GL-Fitting in PTFE or a bottle distributor made of PP.
Being assembled of sealing ring, tapered ring and v-ring, BOLA Laboratory Screw Joints provide a tight connection which is suitable for pressure and vacuum applications.
Furthermore, by exchanging the inner parts only, tubing with different outer diameters can be connected to the same GL thread. This way you can connect e. g. to a GL 14 thread tubing with an outer diameter from 0,8 to 8,00 mm. This system allows also to use BOLA GL Fittings for the assembly of a tubing reduction.